blob: dac0fae14161d1334d66a65d09e533a036c5099a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
clear ;
clc;
// Example 25.1
printf('Example 25.1\n\n');
//page no. 766
// Solution Fig. E25.1
// Given
// C(s) + O2(g) --> CO2(g) (A)
// CO(g) + (1/2)(O2)(g) --> CO2 (g) (B)
Qa = -393.51 ;// Heat of reaction of reaction (a) - [kJ/g mol C]
Qb = -282.99 ;// Heat of reaction of reaction (b) - [kJ/g mol CO]
del_Ha = Qa ;// Change in enthalpy of reaction A - [kJ/g mol C]
del_Hb = Qb ;// Change in enthalpy of reaction B - [kJ/g mol CO]
// According to Hess's Law , subtract reaction (B) from reaction (A) , subtract corresponding del_H's to get enthalpy of formation of reaction (C)- C(s) + (1/2)*O2 --> CO(g) , therefore
del_Hfc = del_Ha - del_Hb ;// Standard heat of formation of CO - [kJ/g mol C]
printf('Standard heat of formation of CO is %.2f kJ/g mol C.',del_Hfc) ;
|
